Bradley, California
27 topographic sheets cover this place, the earliest surveyed in 1919 and the latest in 1989. It stands in the San Ardo census division. It lies in ZIP code area 93426. It stands on San Antonio River. The Survey maps it on the Bradley quadrangle. 69 people lived here at the 2020 count. It stands 548 feet above sea level.
Then and now
1919 to 1989The same ground, surveyed 70 years apart. Drag the handle to wipe between them. Both sheets are United States Geological Survey originals; neither has been altered.


Population over time
2 figuresBradley fell from 93 to 69 between 2010 and 2020. These are the recorded population figures Wikidata holds for this place, reached through the Geographic Names Information System number this page is keyed on rather than by name, so they belong to this place and not to another of the same name. Most are census counts, but not all are: an early figure may be a founding or settlement estimate, and an estimate published within five years of a census is left out. The change column is computed, and is left blank where more than 20 years separate a figure from the one before it, because a gap that long is not a change between two counts.
| Year | People | Change |
|---|---|---|
| 2010 | 93 | |
| 2020 | 69 | -24 (-26%) |
Topographic sheets covering this place
12 surveys from 27 printed sheetsMatched by testing this settlement's coordinate against the published boundary of every sheet in the United States Geological Survey's historical collection. Each opens the scanned sheet at the Survey.
- 1919 USGS Bradley quadrangle1:62500, 4 printings
- 1941 USGS Bradley quadrangle1:62500
- 1947 USGS San Luis Obispo quadrangle1:250000
- 1948 USGS Bradley quadrangle1:62500, 2 printings
- 1948 USGS San Luis Obispo quadrangle1:250000
- 1949 USGS Bradley quadrangle1:24000, 7 printings
- 1956 USGS San Luis Obispo quadrangle1:250000, 5 printings
- 1957 USGS San Luis Obispo quadrangle1:250000
- 1958 USGS San Luis Obispo quadrangle1:250000
- 1961 USGS Bradley quadrangle1:62500, 2 printings
- 1976 USGS Bradley quadrangle1:50000
- 1989 USGS Paso Robles quadrangle1:100000
Fires near this place
143 since 1992Regional context, not property-specific evidence. The federal wildfire occurrence database lists 143 fires within 5 miles of Bradley between 1992 and 2020, burning about 3,783 acres in total. None started naturally. 20 were recorded as arson. Distance is straight-line from the map coordinates, so a fire counted here may appear on a neighbouring settlement's page as well.
| Reported cause | Fires |
|---|---|
| Equipment and vehicle use | 82 |
| Missing data/not specified/undetermined | 24 |
| Arson/incendiarism | 20 |
| Debris and open burning | 5 |
| Railroad operations and maintenance | 4 |
| Smoking | 4 |
| Power generation/transmission/distribution | 4 |
The most recent of them, most recent first, with the day each was reported and the service that recorded it.
| Date | Cause | Size | Reported by | Name on the report |
|---|---|---|---|---|
| 9 September 1998 | Equipment and vehicle use | under an acre | San Benito-Monterey Unit | SIVILAY |
| 9 September 1992 | Equipment and vehicle use | under an acre | San Benito-Monterey Unit | MOBIL OIL # 5 |
| 4 September 1996 | Equipment and vehicle use | under an acre | San Benito-Monterey Unit | HWY 101 #12 |
| 30 September 1999 | Equipment and vehicle use | 2.0 acres | San Benito-Monterey Unit | AERA #3 |
| 3 September 2020 | Missing data/not specified/undetermined | under an acre | San Benito-Monterey Unit | DIXIE |
| 3 September 2005 | Equipment and vehicle use | under an acre | San Benito-Monterey Unit | CABEU003376 |
| 25 September 2002 | Equipment and vehicle use | 50 acres | San Benito-Monterey Unit | MARTINEZ #3 |
| 24 September 2006 | Equipment and vehicle use | 1.0 acres | San Benito-Monterey Unit | CABEU 003681 |
Settlements close enough to share some of these fires:
Mines and quarries near this place
3 within 5 milesRegional context, not property-specific evidence. The federal mineral resources record lists 3 workings within 5 miles of Bradley: 1 past producer, 1 prospect, 1 producer. 1 still produces. What was taken out: Diatomite, Sand and Gravel, Construction. Distance is straight-line from the map coordinates, so a quarry counted here may appear on a neighbouring settlement's page as well.
| Where | Site | Commodity | Status | Recorded |
|---|---|---|---|---|
| Bradley Ranch Pit #2 | Sand and Gravel, Construction | Producer | ||
| California Kieselguhr Co. | Diatomite | Past Producer | ||
| Great Lakes Carbon Corp. | Diatomite | Prospect |
Nearest settlements
The eight closest, with where each one stands in the county. Distances are straight-line, computed from the Geographic Names Information System coordinates.
| Map | Place | Distance | Sheets |
|---|---|---|---|
| Nacimiento | 4.9 miles | 21 | |
| Valleton | 5.3 miles | 21 | |
| Wunpost | 5.7 miles | 24 | |
| Pleyto | 10.2 miles | 24 | |
| Pleyto (historical) | 10.4 miles | 24 | |
| San Ardo | 12.2 miles | 25 | |
| Bryson | 15.8 miles | 27 | |
| Lockwood | 16.0 miles | 25 |
Elsewhere
Matched on this settlement's Geographic Names Information System number rather than its name, so it cannot be a different place of the same name in another state.
| Wikipedia article on Bradley | An encyclopaedic summary. Its text is share-alike, so it is linked here rather than copied. |
| Wikidata item Q3306130 | The structured record the population and elevation above come from. Public domain (CC0). |
Provenance
This settlement is recorded in the Geographic Names Information System as feature 1660370. The sheet list is computed by point-in-boundary test against the United States Geological Survey's historical topographic inventory. Both are works of the United States government and carry no copyright under 17 U.S.C. 105.
Wildfire. Short, Karen C. 2022. Spatial wildfire occurrence data for the United States, 1992-2020 [FPA_FOD_20221014]. 6th Edition. Fort Collins, CO: Forest Service Research Data Archive. https://doi.org/10.2737/RDS-2013-0009.6 Collected with United States Government funding and usable without additional permissions or fees.
Mines and quarries. USGS Mineral Resources Data System (MRDS) https://mrdata.usgs.gov/mrds/ A work of the United States government, no copyright under 17 U.S.C. 105.











